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<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <form>
        籍贯：
        <select>
    <option>安徽省</option>
    <option>江西省</option>
    <!-- 在option标签中可定义属性selected="selected"时，当前为默认选项 -->
    <option selected="selected">外星人</option>
    <option>浙江省</option>
</select> 
</form>
   
</body>
</html>